#include <iostream>
using namespace std;
void abc(int a, int b, int c=10)
{
    cout<<a<<endl;
    cout<<b<<endl;
    cout << c << endl;

}
int add(int right , int left = 10) {
    int left = 10;
    return left + right;
}
double add(double right , double left) {
    
    return left + right;
}
void f(char x,int y)
{}
void f(int x,char y)
{}
int main()
{
    int a = 111;
    abc(1,2);
    cout << add(10) << endl;
    cout << add(11.1) << endl;
    

    return 0;
}